Portable cooking stove



FIG. 1 is a perspective view of a portable cooking stove showing our new design;

FIG. 2 is a plan view of the portable cooking stove;

FIG. 3 is a front view thereof,

FIG. 4 is a rear view thereof,

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a bottom view thereof. 

The new and ornamental design for a portable cooking stove, as shown and described. 